Rice hulling and cleaning machine



(No Model.)

2 Sheets-Sheet I. J W LANE RICE HULLING AND CLEANING MACHINE. No.291.362. 1.884.

-' Patented Jan. 1

v lail 771, 1, Jira Wliane.

(No Model.) 2 Sheets-Sheet 2;

J. W. LANE.

RICE HULLING AND CLEANING MACHINE.

No. 291,862. Patented Jan. 1,1884. 2

a 2 X1 i J WITNESSES UNITED STATES PATENT t OFFIC JOHN W. LANE, orPORTLAND, MAINE.

mcE ULLmeA 'o ciumrmue MACHINE.

SPECIFICATION forming part of Letters Patent No. 291,362, dated January1, 1884..

Application filed October-9,1883. (No model.) i

To a whom, it may concern:

Be it knownthat I, J oHNW. LANE, a citizen of the United States,residing at Portland. in the county of. Oumberlaud and State ofMaine,-h'ave invented certain newand useful Improvements in Rice-Hullingand Cleaning Machines; andI dohereby declarethe IOUOW- ing to be a mu,clear, and exact description of the invention. such as will enableothers I0 skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings,and to letters orfigures of reference marked thereon, which form a part of thisspecification. v H

' '15 Figurelisaperspectiveviewofmyimproved rice huller and cleanerwithout the frame. Fig. 2 is a perspective view of thehuller and cleanerwith the frame, the exhaust-fan and its pipe omitted. Fig. 3 is avertical central section taken longitudinally through the rice hullerand'clean'er and its driving'mechanism, also showing the exhaustpipeandfan. Fig. 4 is a cross-section through the hu'ller and cleaner in theplane indicated by dotted lines xwon Fig; 3, i I

r This invention rel ates to'machinery for hull- 7 ing and cleaningrice; and it consists in certain novel constructions and combinations ofdevices, .which will be fully understood from the following description,when taken in conmotion with the. annexed drawings andclaims. Arepresents a'cylinder, about six feet long and about thirty inches indiameter, provided with projections onribs a on-the inside, as shown. Onthe outside of. this cylinder A there is a gear, b, around it .at oneend, -as shown clearly in Fig. 1, which is driven by a pinion, b. Italso has two rings, H H, near its ends, adapted to run in grooves of thewheels 0 0,,on both sides of and beneath the cylinder A, on which thelatter is supported and revolves. These wheels prevent endwise movementof the cylinder, andthe bearings of said wheels are mounted on asuitable base, F, of the main frame. The cylinder A is held down inplace on wheels 00 by means of grooved wheeled d and rodG, fixed to thestationary heads Aw at cylinder; There is a perforated cylinder, B,inside of the cylinder A, and of the same length, which is mounteduponashaft,B, having spiders uat its ends,'and at intermediate pointsbetween .naled in the boxes of the heads A A, andalso its ends towhich'said cylinder B is fastened, asshown in Fig. 3. The projections orribs a, on the. exterior of the cylinder B, I call wipers, and theirpurpose is to impart blows to the rice. They are beveled, so-as to givedraw-strokes and direct the rice 'tangentially outward against thebeveled ribs a on the outer cylinder, A, and they are numerouslyperforated, to present roughenededges. The shaft B, inside of thecylinder B, extends a sufiicient distance beyond itsend to receive adriving-pulley, R,which is belted, to receive motion from any suitableprime motor.

.At the ends ofthe cylinders A B are the cast-iron heads A A abovereferred to, fitted ted against said ends, so that the cylinder will runrice-tight thereat; The shaft B is jour- 7 in a box'upon the end of astand, L, resting upon the floor, as shown in Fig.3. One of the heads,A, has ahopper, J, for feeding the rice into the space between the innerand outer cylinders, A and B. In this hopper is a valve, J,fonregulating the supply or feed. On the same head is an opening, whichcommu nicateswith a pipe, S, and the space between the two cylinders,(shown in-Fig. 3,) leading to an exhausting engine orfan, V,driven fromthe large pulley by means of a belt, o. By these means the dust, &c., isdrawn from the cyli'n- V ders A B as the rice is cleaned. Y In Fig. 2 I.show the train of gears bywhich motion and proper speedarelcommunicated-8 5 to the outside cylinder from the main shaft Bthrough the medium of pinionwheels b b. 1 Through the headA is apassage, T, for the escape of the hulled and cleaned rice, whichdischargeis regulated by'a va-lve, t. I o Figs. 1 and2 show the pinion bwhich em 7 gages with the gear b, and rotates the large cylinder A,which pinion is'j keyed on the shaft of a" large spur-wheel, b, thatreceives motion from'the main shaft B V 5 Through the heads A A areopenings W, for the free admission of air to the interior of v themachine, so that by the action of the exhaust-fan V currents of air willbe drawn, through the cylinders, and remove the dust,

&c., from the rice during the hulling process.

What I claim, and desire to secure by Letters Patent, isj .1. In a ricehulling and cleaning machine,

the combination of the rotary imperfora-te cylinder A, having adischarge-passage, 1, and internal beveled ribs, (1, the perforaterotary cylinder B, provided with external wipers, a, beveled andperforated, a feed-passage for the rice, and a suction-fan,communicating with the space between the two cylinders, substantially asdescribed.

2. In a rice hulling and cleaning machine, the combination of theinternal perforate rotating cylinder having the perforated and beveledwipers, the external imperforate r0- tating cylinder having internalbeveled ribs. the stationary heads for both cylinders, provided withfeed and discharge passages for the rice, and an air-exhausting device,substantially as described. a

3. The combination of an exterior cylinder having a positive rotation,and an interior perforate cylinder geared thereto, and having perforatedbeveled wipers on the exterior thereof,

substantially as described.

4. The combination of a rotary externalin 1 perforate cylinder havingribs 011 the interior thereof, a rotary perforate cylinder havingperforated and beveled wipers on the exterior thereof, fixed heads A A",provided with air-inlets and feed and discharge passages for the rice,and means for inducing blasts of air through the cylinders,substantially as described.

5. The combination of the external rotary cylinder, A, provided withbands, the grooved wheels, and stationary heads, with the internalperforate cylinder, 13, provided with perforate wipers a, the spidersand main shaft, gears for driving both cylinders from said shaft, andmeans for inducing a blast of air through the cylinders, substantiallyas described, v

Intestimony whereof I affix my signature in presence of two witnesses.

- JOHN W, LANE.

Witnesses:

- W. H. McDoNALD,

WILLIAM BURROWES.

